Syringe holder



FIG. 1 is a perspective view of a syringe holder embodying my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof; and

FIG. 5 is a top plan view thereof. 

The ornamental design for a syringe holder, substantially as shown and described. 